You asked what could be improved so here's what I see:
Boats, Blurry bike, Dirty beach, cluttered bay, teeny mountain way back in the distance.
0. Less cluttered vista
1. Straighten the horizon
2. Define a subject within your image. Is it the bike or the vista? Find a way to emphasize that.
2.5. Consider DOF. Focus is on your handlebars and mirror?
3. Less random objects leading eyes out of the frame (the clipped boats and seawall in this case)
4. No reflections of the photographer unless intended.
5. Generally looks a little flat and/or cold. The coldness doesn't seem to go well with the rest of the image.
6. The way you incorporated the motorcycle doesn't seem to add to the photo, after looking at your other photos on smugmug I think there are other parts of that bike that look more interesting than the gas cap.
7. The random boards going into the water need to go away. They are distracting and don't add anything to the photograph
What part of your photography are you referring to when you say the phone snapshots come out better than the DSLR ones? Is it the composition? The exposure? Find whats "Missing" in your intentional photographs and work on improving that.